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| author | Adrian Hunter <adrian.hunter@intel.com> | 2022-05-06 14:25:40 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-05-10 19:19:09 +0200 |
| commit | 00632610c2f0b732ae87b8c7e7e1375abaeb01a0 (patch) | |
| tree | 369592019cf20d16eadf471979ae3074ace5a70c /tools/lib | |
| parent | perf metrics: Don't add all tool events for sharing (diff) | |
| download | linux-00632610c2f0b732ae87b8c7e7e1375abaeb01a0.tar.xz linux-00632610c2f0b732ae87b8c7e7e1375abaeb01a0.zip | |
libperf evsel: Add perf_evsel__enable_thread()
Add perf_evsel__enable_thread() as a counterpart to
perf_evsel__enable_cpu(), to enable all events for a thread.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/20220506122601.367589-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/perf/evsel.c | 15 | ||||
| -rw-r--r-- | tools/lib/perf/include/perf/evsel.h | 1 |
2 files changed, 16 insertions, 0 deletions
diff --git a/tools/lib/perf/evsel.c b/tools/lib/perf/evsel.c index 20ae9f5f8b30..c1d58673f6ef 100644 --- a/tools/lib/perf/evsel.c +++ b/tools/lib/perf/evsel.c @@ -360,6 +360,21 @@ int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu_map_idx) return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, cpu_map_idx); } +int perf_evsel__enable_thread(struct perf_evsel *evsel, int thread) +{ + struct perf_cpu cpu __maybe_unused; + int idx; + int err; + + perf_cpu_map__for_each_cpu(cpu, idx, evsel->cpus) { + err = perf_evsel__ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, idx, thread); + if (err) + return err; + } + + return 0; +} + int perf_evsel__enable(struct perf_evsel *evsel) { int i; diff --git a/tools/lib/perf/include/perf/evsel.h b/tools/lib/perf/include/perf/evsel.h index 2a9516b42d15..699c0ed97d34 100644 --- a/tools/lib/perf/include/perf/evsel.h +++ b/tools/lib/perf/include/perf/evsel.h @@ -36,6 +36,7 @@ LIBPERF_API int perf_evsel__read(struct perf_evsel *evsel, int cpu_map_idx, int struct perf_counts_values *count); LIBPERF_API int perf_evsel__enable(struct perf_evsel *evsel); LIBPERF_API int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu_map_idx); +LIBPERF_API int perf_evsel__enable_thread(struct perf_evsel *evsel, int thread); LIBPERF_API int perf_evsel__disable(struct perf_evsel *evsel); LIBPERF_API int perf_evsel__disable_cpu(struct perf_evsel *evsel, int cpu_map_idx); LIBPERF_API struct perf_cpu_map *perf_evsel__cpus(struct perf_evsel *evsel); |